Heloo i am a designer,modeler and an animation artist in 2d and 3d,whitboard also..
I can easily make whiteborad animation using your script with audio.
my budget is also low.
I have experienced on some 3d softwares like:-
Maya,cinema 4d,3ds max,unity,iclone etc.
Another some softwares like:-
Photoshop,AI,AE,videoscribe,crazy talk animator etc
Please
Thanks